Portable bayonet sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a portable bayonet sensor which comprises a sensor body, a locking screw is spirally connected to the lower portion of the right side in the sensor body, a first hollow shell is fixedly connected to the right side of the front end face of the sensor body, and an L-shaped plate is fixedly connected to the right end face of the first hollow shell. A one-way threaded rod is rotationally connected to the middle of the upper portion in the first hollow shell, and a rotating handle is fixedly connected to the bottom end of the one-way threaded rod. Through design cooperation, the device can enable the arc-shaped plate located in the middle of the lower part of the sensor body to extrude downwards towards the upper part of the pumping unit pull rod by rotating the rotating handle when the locking screw performs transverse measurement on the pumping unit pull rod, thereby preventing the pumping unit pull rod from being damaged when the pumping unit pull rod is extruded from right to left by the locking screw. A pumping unit pull rod is located at the left position of the middle of the lower portion of a sensor body, so that the detection result of the sensor has errors.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a portable bayonet sensor. Background Art

[0002] In oil fields, the position and movement status of the pumping rod are crucial for monitoring the performance of oil field production and maintenance equipment. The bayonet sensor uses the deformation of the pumping rod, which becomes thicker or thinner when subjected to force, to measure the magnitude of the force applied to the pumping rod.

[0003] Patent specification with announcement number CN209230645U discloses a portable bayonet sensor, comprising a sensor body, a bayonet slot, and a locking screw. The locking screw, located at one end inside the bayonet slot, is rotatably connected to a mounting plate via a rolling bearing. The sensor body is also provided with a first locking plate and a second locking plate. Three mounting blocks are fixedly provided on the back of each of the first and second locking plates. The mounting plate is provided with three mounting slots matching the mounting blocks on a side away from the locking screw. The three mounting blocks are fixedly connected to limit blocks on one end inside the mounting slot on both sides of the upper and lower sides. The mounting slot is provided with limit slots matching the limit blocks on both sides of the upper and lower sides. A first pin hole is provided at the upper end of the mounting plate, and the lower end of the first pin hole extends to the bottom of the mounting plate. The utility model can effectively lock objects of different shapes to be measured more firmly, improve measurement accuracy, and has a wide range of applications. It is also easy to replace and repair, saving usage costs.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned portable bayonet sensor has the following problems: the traditional bayonet sensor is to clamp the pumping unit rod in the sensor's slot, and fix the pumping unit rod to the inside of the sensor's slot through a locking screw, so as to achieve the purpose of fixing the bayonet sensor on the outside of the pumping unit rod. However, when the cross-sectional diameter of the pumping unit rod is smaller than the inner diameter of the slot, rotating the locking screw will cause the pumping unit rod to be squeezed and move to the left side of the slot. However, the measuring area of ​​the sensor body is in the middle position on the left side of the slot. After being squeezed by the locking screw, the pumping unit rod is easily clamped in the upper left position of the slot of the sensor body, resulting in errors in the measurement results. In view of this, a portable bayonet sensor is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a portable bayonet sensor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a portable bayonet sensor, comprising a sensor body, a locking screw being spirally connected to the lower right side of the interior of the sensor body, a first hollow shell being fixedly connected to the right side of the front end face of the sensor body, an L-shaped plate being fixedly connected to the right end face of the first hollow shell, a one-way threaded rod being rotatably connected to the middle of the upper part of the interior of the first hollow shell, a turning handle being fixedly connected to the bottom end of the one-way threaded rod, a moving block being spirally connected to the outer side of the one-way threaded rod, a first connecting rod being fixedly connected to the left end face of the moving block, an end of the first connecting rod being fixedly connected to an arc plate away from the moving block, a rubber plate being fixedly connected to the lower end face of the arc plate, and a groove being provided on the right end face of the arc plate.

[0007] As a further description of the above technical solution: the rear end face of the L-shaped plate is fixedly connected to the right side of the front end face of the sensor body, the top end of the turning handle is rotatably connected to the middle of the bottom end of the first hollow shell, the outer side of the movable block is slidingly connected to the inner wall of the first hollow shell, the right top surface of the first connecting rod is slidingly connected to the middle of the left end face of the first hollow shell, and the top end of the arc plate is in contact with the middle of the lower part of the sensor body. When the locking screw is used to perform a horizontal measurement of the pumping unit pull rod, the turning handle can be rotated to allow the arc plate located in the middle of the lower part of the sensor body to be squeezed downward toward the top of the pumping unit pull rod, thereby avoiding the pumping unit pull rod being located to the left of the middle of the lower part of the sensor body when being squeezed from right to left by the locking screw, resulting in an error in the sensor's detection result.

[0008] As a further description of the above technical solution: a slot is opened in the middle of the sensor body from the middle to the bottom, and the arc plate slides up and down inside the slot for the pumping unit pull rod to be inserted into the slot, and its right side is fixed by the locking screw. The arc plate limits its upper side, so that the pumping unit pull rod is only fixed at the left center of the slot.

[0009] As a further description of the above technical solution: the first hollow shell and the sensor body are connected and fixed by an L-shaped plate, and the inside of the L-shaped plate is penetrated by bolts and screwed tightly to the inside of the first hollow shell and the sensor body. The first hollow shell can be fixed to the right side of the front end face of the sensor body, so that the arc-shaped plate is restricted to the inside of the slot of the sensor body.

[0010] As a further description of the above technical solution: a longitudinal slide groove is provided on the left end face of the first hollow shell, and the width of the longitudinal slide groove matches the longitudinal section diameter of the first connecting rod. The overall shape of the first connecting rod is L-shaped, and the movable block can drive the arc plate to slide up and down inside the slot through the first connecting rod.

[0011] As a further description of the above technical solution: the groove is located in the middle position of the right end face of the arc plate, the length of the groove matches the radius of the arc plate, and the width of the groove matches the longitudinal section of the top left side of the locking screw, which can reduce the interference of the arc plate on the movement of the locking screw from right to left when the arc plate slides up and down inside the slot.

[0012] As a further description of the above technical solution: a second hollow shell is fixedly connected to the right side of the rear end face of the sensor body, a limiting rod is fixedly connected to the middle of the inside of the second hollow shell, a sliding block is slidably connected to the outside of the limiting rod, and the bottom end of the sliding block is fixedly connected to a tension spring, and the end of the tension spring away from the sliding block is fixedly connected to the lower middle of the inside of the second hollow shell, and the left end face of the sliding block is fixedly connected to a second connecting rod, and the end of the second connecting rod away from the sliding block is fixedly connected to the right side of the rear end face of the arc plate, so that when the one-way threaded rod inside the first hollow shell drives the arc plate to move up and down, it can cooperate with the limiting rod and tension spring inside the second hollow shell behind the sensor body to stabilize the rear of the arc plate.

[0013] As a further description of the above technical solution: the position of the second hollow shell corresponds to that of the first hollow shell, and the right end face of the second hollow shell is provided with an L-shaped plate identical to the right end face of the first hollow shell, and the left end face of the second hollow shell is also provided with a longitudinal slide groove, and the width of the longitudinal slide groove matches the cross-sectional diameter of the second connecting rod, so that the sliding block is restricted to the rear end position of the arc plate by the second connecting rod, so that when the arc plate is driven by the one-way threaded rod to move downward, the balance of the arc plate when squeezing the pumping unit pull rod is maintained.

[0014] The utility model has the following beneficial effects:

[0015] The portable bayonet sensor designed by the utility model is designed to enable the device to make a horizontal measurement of the pumping unit rod by rotating the handle when the locking screw is performing a horizontal measurement on the pumping unit rod, so that the arc plate located in the middle below the sensor body is squeezed downward toward the top of the pumping unit rod, thereby avoiding the pumping unit rod being located to the left of the middle below the sensor body when being squeezed from right to left by the locking screw, which leads to errors in the detection results of the sensor, and improving the stability of the pumping unit rod in the middle position below the sensor body to a certain extent.

[0016] The portable bayonet sensor designed by the utility model is designed so that when the one-way threaded rod inside the first hollow shell drives the arc plate to move up and down, it cooperates with the limiting rod and tension spring inside the second hollow shell behind the sensor body to stabilize the rear of the arc plate, thereby preventing the one-way threaded rod from driving the arc plate to slide downward with only one end exerting force, causing the other end of the arc plate to tilt upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when the entire structure is flipped 180 degrees horizontally;

[0019] Figure 3 This is a schematic diagram of the longitudinal cross-sectional three-dimensional structure of the first hollow shell and the second hollow shell of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the curved plate of the present invention after being longitudinally flipped 180 degrees.

[0021] Legend:

[0022] 1. Sensor body; 2. Locking screw; 3. First hollow shell; 4. L-shaped plate; 5. Turning handle; 6. Arc plate; 7. Second hollow shell; 8. Second connecting rod; 9. One-way threaded rod; 10. Moving block; 11. First connecting rod; 12. Grooving; 13. Limiting rod; 14. Sliding block; 15. Tension spring; 16. Rubber sheet. DETAILED DESCRIPTION

[0023] Reference Figures 1-4 The utility model provides a portable bayonet sensor, including a sensor body 1, a locking screw 2 is passed through and screwed on the lower right side of the interior of the sensor body 1, the right side of the front end face of the sensor body 1 is close to the rear end face of the first hollow shell 3, the right end face of the first hollow shell 3 is fixed with an L-shaped plate 4 by a bolt, the upper middle part of the interior of the first hollow shell 3 is connected with a one-way threaded rod 9 through a bearing, the bottom end of the one-way threaded rod 9 is welded with a turning handle 5, the outer side of the one-way threaded rod 9 passes through the interior of the moving block 10 and is screwed with the internal thread of the moving block 10, the left end face of the moving block 10 is welded with a first connecting rod 11, the end of the first connecting rod 11 away from the moving block 10 is welded with an arc plate 6, the lower end face of the arc plate 6 is adhered to the rubber plate 16 by adhesive, and a groove 12 is provided on the right end face of the arc plate 6. The rear end face of the mold plate 4 is fixedly connected to the right side of the front end face of the sensor body 1, the top end of the handle 5 is rotatably connected to the middle of the bottom end of the first hollow shell 3, the outer side of the movable block 10 is slidingly connected to the inner wall of the first hollow shell 3, the right top surface of the first connecting rod 11 is slidingly connected to the middle of the left end face of the first hollow shell 3, and the top end of the arc plate 6 is in contact with the middle of the lower part of the sensor body 1. When the locking screw 2 is used to perform a horizontal measurement of the pumping unit pull rod, the handle 5 can be rotated to allow the arc plate 6 located in the middle of the lower part of the sensor body 1 to be squeezed downward toward the top of the pumping unit pull rod, so as to avoid the pumping unit pull rod being in a position slightly left of the middle below the sensor body 1 when being squeezed from right to left by the locking screw 2, resulting in an error in the sensor's detection result.

[0024] As a further implementation plan of the above technical solution: a slot is opened in the middle of the sensor body 1 from the middle to the bottom, and the arc plate 6 slides up and down inside the slot for the pumping unit pull rod to be inserted into the slot, and its right side is fixed by the locking screw 2, and the arc plate 6 limits its upper side, so that the pumping unit pull rod is only fixed at the left center of the slot.

[0025] As a further implementation of the above technical solution: the first hollow shell 3 and the sensor body 1 are connected and fixed by an L-shaped plate 4, and the inside of the L-shaped plate 4 is penetrated by a bolt and screwed into the inside of the first hollow shell 3 and the sensor body 1. The first hollow shell 3 can be fixed to the right side of the front end surface of the sensor body 1, and the arc plate 6 is restricted to the inner side of the card slot of the sensor body 1.

[0026] As a further implementation plan of the above technical solution: a longitudinal slide groove is opened on the left end face of the first hollow shell 3, and the width of the longitudinal slide groove matches the longitudinal section diameter of the first connecting rod 11. The overall shape of the first connecting rod 11 is L-shaped, and the movable block 10 can drive the arc plate 6 to slide up and down inside the slot through the first connecting rod 11.

[0027] As a further implementation plan of the above technical solution: the groove 12 is located in the middle position of the right end face of the arc plate 6, the length of the groove 12 matches the radius of the arc plate 6, and the width of the groove 12 matches the longitudinal section of the top left side of the locking screw 2. When the arc plate 6 slides up and down inside the slot, the interference of the arc plate 6 on the movement of the locking screw 2 from right to left can be reduced.

[0028] As a further implementation plan of the above technical solution: the second hollow shell 7 is fixed to the right side of the rear end face of the sensor body 1 by bolts inside the L-shaped plate 4, and a limit rod 13 is welded in the middle of the second hollow shell 7. The outer side of the limit rod 13 passes through the interior of the sliding block 14 and is slidably connected to the interior of the sliding block 14. A tension spring 15 is welded to the bottom end of the sliding block 14, and the end of the tension spring 15 away from the sliding block 14 is fixedly connected to the lower middle of the interior of the second hollow shell 7. A second connecting rod 8 is welded on the left end face of the sliding block 14, and the end of the second connecting rod 8 away from the sliding block 14 is fixedly connected to the right side of the rear end face of the arc plate 6. When the one-way threaded rod 9 inside the first hollow shell 3 drives the arc plate 6 to move up and down, it cooperates with the limit rod 13 and the tension spring 15 inside the second hollow shell 7 behind the sensor body 1 to stabilize the rear of the arc plate 6.

[0029] As a further implementation plan of the above technical solution: the position of the second hollow shell 7 corresponds to the first hollow shell 3, and the right end face of the second hollow shell 7 is provided with an L-shaped plate 4 identical to the right end face of the first hollow shell 3, and the left end face of the second hollow shell 7 is also provided with a longitudinal slide groove, and the width of the longitudinal slide groove matches the cross-sectional diameter of the second connecting rod 8, so that the sliding block 14 is restricted to the rear end position of the arc plate 6 by the second connecting rod 8, so that when the arc plate 6 is driven by the one-way threaded rod 9 to move downward, the arc plate 6 maintains balance when squeezing the pumping unit pull rod.

[0030] Working principle:

[0031] When using the present invention, the first hollow shell 3 is installed at the right position in front of the card slot of the sensor body 1, and the second hollow shell 7 is installed at the right position behind the card slot of the sensor body 1. The four L-shaped plates 4 are divided into two groups, two in one group, and fixed to the right end faces of the first hollow shell 3 and the second hollow shell 7 respectively. The L-shaped plates 4 are fixed with bolts, and then the rear end face of the L-shaped plates 4 are bolted to the front and rear end faces of the right side of the sensor body 1. When installing the first hollow shell 3, it is necessary to pay attention to inserting the arc plate 6 into the card slot opened in the middle and lower part of the sensor body 1. After the first hollow shell 3 and the second hollow shell 7 are installed, the surface of the pumping unit pull rod can be inspected, and the pumping unit pull rod can be inserted into the middle position inside the card slot of the sensor body 1, and then according to the longitudinal section diameter of the pumping unit pull rod Adjust the position of the curved plate 6 to prevent the pumping unit pull rod from being squeezed by the locking screw 2 and moving to the upper left of the slot. Turn the handle 5, which drives the one-way threaded rod 9 inside the first hollow shell 3 to rotate. The moving block 10 on the outside of the one-way threaded rod 9 drives the curved plate 6 to move downward through the first connecting rod 11, and the second connecting rod 8 at the top rear end of the curved plate 6 drives the sliding block 14 to slide downward on the outside of the limit rod 13. The tension spring 15 begins to rebound until the rubber plate 16 under the curved plate 6 contacts the upper surface of the pumping unit pull rod and then stops rotating the handle 5. At this time, the top of the pumping unit pull rod is limited. Rotate the locking screw 2, and the locking screw 2 slowly moves to the right side of the pumping unit pull rod inside the slot until the locking screw 2 fixes the pumping unit pull rod inside the slot and stops.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable bayonet sensor, comprising a sensor body (1), characterized in that: A locking screw (2) is spirally connected to the lower right side of the sensor body (1), a first hollow shell (3) is fixedly connected to the right side of the front end face of the sensor body (1), an L-shaped plate (4) is fixedly connected to the right end face of the first hollow shell (3), a one-way threaded rod (9) is rotatably connected to the middle of the upper part of the first hollow shell (3), a turning handle (5) is fixedly connected to the bottom end of the one-way threaded rod (9), a moving block (10) is spirally connected to the outer side of the one-way threaded rod (9), a first connecting rod (11) is fixedly connected to the left end face of the moving block (10), an end of the first connecting rod (11) away from the moving block (10) is fixedly connected to an arc plate (6), a rubber plate (16) is fixedly connected to the lower end face of the arc plate (6), and a groove (12) is provided on the right end face of the arc plate (6).

2. The portable bayonet sensor according to claim 1, characterized in that: The rear end face of the L-shaped plate (4) is fixedly connected to the right side of the front end face of the sensor body (1); the top end of the turning handle (5) is rotatably connected to the middle of the bottom end of the first hollow shell (3); the outer side of the moving block (10) is slidably connected to the inner wall of the first hollow shell (3); the right top end surface of the first connecting rod (11) is slidably connected to the middle of the left end face of the first hollow shell (3); and the top end of the arc plate (6) is in contact with the middle of the lower interior of the sensor body (1).

3. The portable bayonet sensor according to claim 1, wherein: A slot extending downward from the middle is provided in the middle of the sensor body (1), and the arc-shaped plate (6) slides up and down inside the slot.

4. The portable bayonet sensor according to claim 1, wherein: The first hollow shell (3) and the sensor body (1) are connected and fixed by an L-shaped plate (4), and the inside of the L-shaped plate (4) is penetrated by bolts and screwed tightly to the inside of the first hollow shell (3) and the sensor body (1).

5. The portable bayonet sensor according to claim 1, characterized in that: A longitudinal slide groove is provided on the left end surface of the first hollow shell (3), and the width of the longitudinal slide groove matches the diameter of the longitudinal section of the first connecting rod (11). The overall shape of the first connecting rod (11) is L-shaped.

6. The portable bayonet sensor according to claim 1, characterized in that: The groove (12) is located in the middle of the right end face of the arc plate (6), the length of the groove (12) matches the radius of the arc plate (6), and the width of the groove (12) matches the longitudinal section of the left top end of the locking screw (2).

7. The portable bayonet sensor according to claim 1, characterized in that: The right side of the rear end face of the sensor body (1) is fixedly connected to a second hollow shell (7), the middle of the interior of the second hollow shell (7) is fixedly connected to a limiting rod (13), the outer side of the limiting rod (13) is slidably connected to a sliding block (14), the bottom end of the sliding block (14) is fixedly connected to a tension spring (15), the end of the tension spring (15) away from the sliding block (14) is fixedly connected to the middle of the lower part of the interior of the second hollow shell (7), the left end face of the sliding block (14) is fixedly connected to a second connecting rod (8), the end of the second connecting rod (8) away from the sliding block (14) is fixedly connected to the right side of the rear end face of the arc plate (6).

8. The portable bayonet sensor according to claim 7, characterized in that: The position of the second hollow shell (7) corresponds to that of the first hollow shell (3), and the right end face of the second hollow shell (7) is provided with an L-shaped plate (4) identical to the right end face of the first hollow shell (3). The left end face of the second hollow shell (7) is also provided with a longitudinal slide groove, and the width of the longitudinal slide groove matches the cross-sectional diameter of the second connecting rod (8).

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